Water Quality Modeling for Poti River in Teresina, Brazil

A research study presents the first water quality model for a 36.8 km stretch of the Poti river in the semiarid region of Brazil. The dataset, created by Antônio Alves De Oliveira Filho, models dissolved oxygen, biochemical oxygen demand, and thermotolerant coliforms using the QUAL-UFMG platform. Calibration resulted in mean deviations up to 20% and Nash-Sutcliffe efficiency coefficients higher than 0.75.

Use Cases

• Predicting dissolved oxygen levels in rivers based on modeled parameters.
• Assessing biochemical oxygen demand for water quality management.
• Modeling thermotolerant coliform concentrations to evaluate sewage contamination.
• Simulating water quality under different flow scenarios (minimum and maximum).
• Calibrating decay coefficients for water quality parameters in semiarid river systems.

Strengths

• The model covers a specific 36.8 km stretch of the Poti river.
• Calibration achieved Nash-Sutcliffe efficiency coefficients higher than 0.75.
• Model validation included comparison to field data from the literature.

Limitations

• Row count and file formats are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

Antônio Alves De Oliveira Filho via paperswithcode

Collection Method

Mathematical modeling using the QUAL-UFMG platform, calibrated with field measurements.

Geography

36.8 km stretch of the Poti river in Teresina, Piauí, Brazil (semiarid region of the Parnaíba river basin).